/Engine/Plugins/Slate/SlateScripting/Source/SlateScriptingCommands/Public/UICommandsScriptingSubsystem.h
Checks whether the given input chord is already mapped to a command in the given context. This includes commands not registered through the subsystem.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="Editor Scripting | Commands | Contexts") bool IsInputChordMapped ( [FName](API\Runtime\Core\UObject\FName) ContextName, [FInputChord](API\Runtime\Slate\Framework\Commands\FInputChord) InputChord ) const